Technical Committee

PICTURED LEFT - After several unsuccessful attempts since 1993 to incorporate technical ICPI information in their publications, it appears that AASHTO is now providing a place for interlocking and permeable interlocking concrete pavement in an update of its Handbook on Pavement Design, Construction,and Management. Originally issued as an e-book in 2015, the 1000-page AASHTO PDCM Handbookis the go-to, comprehensive technical resource for asphalt and concrete pavements. Thanks to a staff relationship with the AASHTO subcommittee chair with oversight on updating the Handbook, the text is being written on ICP and PICP to add to the concrete pavements sections on materials, design, construction, etc. management (maintenance). If adopted, this entry represents a significant ICP and PICP education resource for provincial, state, local, and consulting civil engineers and a big step toward institutionalizing the industry's paving systems.

A Task Group is overseeing a webinar series based on the Best Manufacturing Practices manual issued by the Technical Committee in 2018. The series is divided into short presentations with video links and fact recall quizzes for viewing by plant production personnel. The series is designed to supplement on-the-job training and communicate best practices for manufacturing segmental concrete paving products. Modules completed to date include aggregate handling and testing, cement production, and interpreting cement mill test reports. Work continues on modules covering SCMs, admixtures, mix designs and mixing, production QC/QA, production molds and mold care, curing, and packaging. Once recorded in English with Spanish subtitles, the modules will be available on the ICPI Learning Management System.

PICTURED LEFT - A Task Group aims to develop a test method and acceptance criteria for pedestal-set paving slabs. ICPI members donated paving slabs tested at NCMA labs under a contract with the ICPI Foundation. The first phase is completed with results from breaking about three sets each of 40 paving slabs using center-load testing. Slabs were also sampled and tested for flexural strength per ASTM C1782 and compressive strength and density/absorption per ASTM C140. Overall, the variation among the center-load test results is well below 10%, indicating that the center-load test method is repeatable. The next step is the evaluation of the test data by the task group. If acceptable, then Phase 2 will advance with tests on paving slabs from at least six producers.

ICPI is more than an association to many members. It is a family. We lift each other around shared interests, and in doing so, we strengthen our industry while we grow our potential.